Plasticized composition



Patented June l9, 1945 I I Q I I v UNITED STATES PATENT OFFICE rms'ricizun coMPos'I'rioiv J. Soday, Swarthmore, Pa., assignor to The United Gas ImprovementCompany, a corporation of Pennsylvania No Drawing. ApplicationJuly a, 1942, I

; 7 Serial No. 450,085

1 17 Claims, (01.106-183) This invention relates to new compositions of I acid, phenylpropionic acid, cinnamic acid, and matter and to methods for their preparation. the like. I I

More specifically, this invention pertains to the Such esters may be regarded as having the use of one or more esters of alkyl phenylethyl; iollowin g structural Iormula alcohols, either alone or in' combination with 5 1 other plasticizing agents, as plasticizing agents i 1 for resins and plastics. An object of the present invention is the pro- I vision of new compositions of matter comprisk/ ing mixtures or blends of one. or more esters of I I Y i v l yl Ph ny alcohols i One mor in which one of the group consisting of a and b resins or plastics. Another object of theinven- I is an 00Q-X group, in which X is hydrogen, ti n is the p vi i n of organic eemp n alkyl, alkenyl, substituted alkyl, substituted prising fluids which are essentially colorless and menyl, aryl-alkyl, substituted aryl-alkyl, the which are suitable for .use alone or in combina- I 0 tion with other substances as'plasticizers in the cavern I formulation of lacquers, particularly those dev rived from one or more cellulosic plastics. -A

further object of the invention is-the provision -l-R..

of new molding compositions comprising one or 7 more esters of alkyl phenylethyl alcohols in combination with one or more resinsor plastics. I p, 0 he I Other objects and advantages of the invention will be apparent to those skilled in the art from the following description.

Alkyl phenylethyl alcohols CIR-CH2 group, the remaining 01' said group a and I: bein l n i hydrogen, R. is an alkyl group, and 'n denotes that from one to'flve alkyl groups may be present in themolecule.

in which one of the group Co st o a d Aliphatic monobasic acid esters of tolylethyl is an hydroxyl group, the remaining group being l h la I hydrogen, R is an alkylgroup, and n denotes I CHLCHOH GEORGE.

that from one to five alkyl groups may bepres- I ent in the molecule, maybe esterified with acids to give esters which are unusually stable, light in color, and possess exceptionally desirablev odors. 4o

I have discovered'that certain esters of alkyl I I t h y alcohols are unusually desirable Beta ortho tolylethyl Alpha ortho tolylethyl plasticizing agentsfor a wide variety of resinous alcohol and plastic materials. I oracmoH CHORCH:

Acids which may be reacted with alcohols of l i the type described include'aliphaticmonobasic acids, suchjas formic, acetic, propionic, butyric, I I valeric, caproic, oenanthic, caprylic, pelargonic, CH3' --CHa capric, and similar acids having a higher num- I ber. of carbon atoms; unsaturated acids, such as 0 Beta melta f lv y Alpha meta tolylethyl acrylic acid, crotonic acid, isocrotonic acid, metha co 0 alcohfl acrylic acid, vinylacetic acid, and the like; and

halogenated fatty acids, such as chloroformic acid, monochloroacetic acid, .dichloroacetic acid, I alpha-chloropropionic acid, and thelike; hy- I droxy acids, such as glycollic acid, lactic acid,

, alpha-hydroxybutyric acid, and the like; amino acids, such as glycine, alanine, valine, leucine, and the like; i and aryl-substituted aliphatic acids, such as phenylacetic acid, hydrocinnamic (EHgCHgOH CIBHOELCHi I w CH ,I on; I Betapara tolylethyl Alpha para tolyletliyl alcohol alcohol resinous and plastic materials.

The preparation of alpha tolylethyl alcohol is disclosed and claimed in my copending application, Serial No. 290,501, filed August 16, 1939, now Patent 2,293,774, dated August 25, 1942.

The use of alkyl esters of such alcohols as plasticizing agents has been found to giveunusually good results in practically all cases. The acetic, propionic, butyric, and valeric acid esters of tolylethyl alcohols. are particularly desirable plasticizing agents for a wide variety of resinous and/or plastic materials, such as the cellulosic plastics.

The preparation of the acetic and butyric acid esters of tolylethyl alcohols are disclosed and claimed in my copending applications, Serial Nos. 290,502, filed August 16, 1939, now Patent 2,293,775, dated August 25, 1942, and 313,342, filed January 11, 1940, now Patent 2,316,912, dated April 20, 1943.

Such esters may be prepared by the reaction of the desired tolylethyl alcohol, or mixtures of tolylethyl alcohols, or derivatives of tolylethyl alcohols containing an atom or group capable of being replaced with an ester group corresponding to the desired acid or mixture of acids, with the desired acid or anhydride, or salts or derivatives thereof.

The preparation of such esters maybe illustrated by thepreparation of the valeric acid esters of tolylethyl alcohols.

Valeric acid occurs in four isomeric forms, as follows. 1

ontomonromooon n-Valeric acid s CH3 oncracooa Isovaleric acid ates.

Illustrative of the salts of valeric acid which may be employed as esterification reagents maybe mentioned sodium valerate, potassium valerate, calcium valerate, iron valerate, lead valerate and other salts. These salts maybe the normal valerates, or the isomeric valerates, or any desired mixture thereof.

The esterification reaction may be carried out in the presence of a solvent, such as for example, benzene, if desired.

Any suitable reaction temperature may be employed, such as for example, the boiling point of the solution.

The esterification reaction may be carried out advantageous from the standpoint of the yield of ester secured, as well as from the standpoint of the considerable reduction in time necessary to complete the reaction.

One suitable method for effecting the esterification processes of the present invention comprises refluxing the derivatives with esterification reagents for a period of several hours.

For example, salts of valeric acids may be refluxed'with tolylethyl halides to produce the corresponding tolylethyl esters. This reaction may, if desired, be effected in the presence of the corresponding valeric acid.

The tolylethyl esters thus produced may be suitably separated from the halogen salts in the reaction mixture, for example, by filtration.

If a valeric acid has been employed in the esteriflcation reaction, it may be removed such as by distillation under reduced pressure. Any unremoved acid may then be neutralized such as with an alkaline solution.

The tolylethyl esters obtained by the processes herein described may be isolated and purified in any desired manner.

For example, the reaction mixture may, if desired, be repeatedly extracted with any suitable solvent, such as ether or benzene, to increase the yield and purity of the tolylethyl esters therein a preparation of mixtures of alpha and beta tolylethyl esters of valeric acids.

Such mixtures of the alpha and beta forms of para tolylethyl esters of valeric acids may be desired in order to obtain a product possessing a desired boiling range, or desired volatility characteristics, or other desired properties.

For example, a. mixture containing the desired proportion of each of the isomeric forms of tolylethylv halides may be reacted with a salt of valeric acid to obtain a tolylethyl ester fraction containing the desired proportion of the isomeric forms of tolylethyl esters of the acid. Mixtures containing the desired proportion of alpha and beta tolylethyl halides suitable for use in my process may be obtained, for example, by adding a hydrogen halide to methyl styrene under the proper conditions to give the desired mixture of isomeric tolylethyl halides.

Similarly, a mixture of the isomeric forms of other tolylethyl derivatives, such as for example the tolylethyl alcohols, in the desired proportions,

tolylethyl chloride:

was added with stirring to a neutralize the unchanged acid heated to 100 C.

2,avs,4.47 a

may be 'esterifled to obtain a tolylethyl ester fraction containing the desired proportion of the isomeric forms of tolylethyl esters of valeric acid.

Also a. mixture'of valeric acids or anhydridesor the forederivatives thereof, may be employed i going processes.

' When mixtures of isomeric forms of tolylcthyl esters of valeric acid are obtained, they may if desired be separated into; fractions containing the individual-isomers by any suitable method, such as for instance by-fractionation.

As illustrative of'the methods for preparing various tolylethyl esters'of valericacids', the following examples are given Example 1 A 108 gram' (0.7 mole) portion'of alpha. Dara- CHCLCH: I

(0.91 mole) of freshly prepared potassium n-valerate in 100 grams of n-valeric 'acid, the addition being carried out in a 1-liter flask fltted'witha re-. v flux condenser. The mixture was heated to, 140

C. by means of an oil-bath and maintained at this temperature with good stirring for a period of five hours, It was allowedv to cool .and then treated with sodium bicarbonate solution to valeric acid present;

The neutral mixture was then extracted with ether and dried over-anhydrous sodium sulphate. After the ether had been removed by heating on a hot. water bath, the ester was distilled in vacuo,

giving 110 grams of alpha, para-tolylethyl n-valerate.

This compound had the following structural formula and physical properties:

CH.CH|

ooo.(ormi.om

Boiling range=126-12'7 at 6 mm. Hg absolute Density (d 20/4)=0.9697

Refractive index (n 20/d).=1.48805 'The yield was 71.;4%

The compound was a colorless, somewhat vis-. cous liquid with a of theoretical. I

very pleasant odor. Example 2 A solution of potassium n-valerate in n-valeric acid was made by stirring 210 grams (1.5 mole) of the fused salt into 250 grams of the anhydrous When a clear syrupy solution was obtained, 199 grams (1 mol) of beta, para-tolylethyl bromide:

oHsoHmr was added slowly through the reflux condenser mixture of'12'1grams' Boiling range=113-116- andthe temperature was'raised gradually to 170. This temperature was maintained for a period, of 13 hours, during which time a fineprecipitate of potassium bromide separated from the reaction mixture.

The mixture was cooled and filtered by .suction to remove the potassium bromide and excess potassium valerate, and the clear filtrate was distilled under reduced pressure to remove the major portion of the valeric acid which came over at a temperature of -60 at 4 mm. pressure absolute. The potassium bromide and excess potassium valerate were, dissolved in cold water and extracted twice with ether to recover the small amountof absorbed ester. This extract was combined with the crude ester and treated with 10% sodium bi'carbonate'solution to neutralize the residual acid. It was then extracted with ether, dried with anhydrous sodium sulphate, and distilled.

Distillation under reduced pressure gave 172 7 grams 'of beta, para-tolylethyl n-valerate:

. a. This compound had the following physicalproperties:

at 4 mm. Hg absolute Density (d 20/4) =0.9'l20 Refractive index (11. 20/d) =1.48855 This represented a yield conversion of 78.2%, based on we amount of beta, para-tolylethyl bromide used in the esterification.

The ester was obtained as a colorless, somewhat viscous liquidwith an agreeable odor.

' Example 3 solution of potassium isovalerat'e ,in isovaleric acid was made by stirring 210 grams (1.5 mole) of freshly fused potassium isovaleric'into 300 ethyl chloride:

'grams'of the anhydrous acid at a. temperature of C. When a clear syrupy solution was obtained, 155 grams (1 mol) of alpha para-tolylonoiom was added slowly through the reflux condenser, and the temperature was raised gradually to C; The temperature was kept at 140-145 for five hours with vigorous time a fine precipitate of potassium chloride separated but as a. by-product of the reaction. The mixturewas cooled and fllteredby suction to remove the potassium chloride and excess potassium isovalerate, and the clear filtrate was distilled under reduced pressure to remove most of the isovaleric'acid. The higher boiling liquid containing the ester was treated in the cold with- 10% sodium bicarbonate solution to neutralize the residual acid. It was then extracted with ether, dried and distilled;-

stirrlng, during which' Distillation under reduced pressure gave 166 grams of alpha, para-tolylethyl isovalerate:

CH.CHa /CH3 OOG.CH .CH

- H3 7 This compound has the following physical properties:

This product was acolorless; somewhat viscous liquid with-an agreeable ester odor.

Example 4 A 210 gram portion (1.5 mols) of potassium isovalerate was added with stirring to 250 grams of isovaleric acid and heated to 100 C. until all.

the salt was dissolved. To this clear, syrupy solution was added dropwise, with continued stir ring, 200 grams (1 mol) of beta, para-tolylethyl bromide:

(llH CHgBr in 50 minutes after which the temperature was raised to 165.

The temperature was kept at 163-167, producing mild refluxing of the acid, for a period of 14 hours. The reaction mixture was then cooled and filtered to remove the potassium bromide and excess potassium isovalerate, and this solid matter was dissolved inwater and extracted with ether to recover any absorbed ester. The clear filtrate was distilled to remove most of the isovaleric acid which came over 'at 49-51 at 3 mm. Hg absolute. The crude ester, combined with the ether extract, was treated with sodium bicarbonate solution to neutralize the residual acid. It was then extracted with ether, dried with anhydrous sodium sulphate and distilled.

Distillation under reduced pressure gave 156 grams of beta, para-tolylethyl isovalerate:

CHa CH2-CH2.00C.CH2.C I cm mm, Hg absolute ethyl bromide used in the esterification.

The ester was obtained as a colorless, somewhat viscous liquid with a very sweet odor.

It will be understood of course, that tolylethyl esters of valeric acids may be prepared from pure methyl styrene or hydrocarbon fractions such as light oil fractions containing methyl styrene by processes which may be conducted on a continual, continuous, semi-continuous, orbatch basis. For example, such a proces may comprise first converting the methyl styrene into a tolylethyl derivative containing a substituent capable of being replaced with an ester group corresponding to the desired valeric acid, and thereafter effecting esterification of said'derivative.

For example, a tolylethyl halide or a mixture of tolylethyl halides may be prepared from a light oil methyl styrene fraction obtained by the distillation of. light'oil from oil gas and containing meta, para andortho methyl styrenes and these tolylethyl halides may then be esterified to form the desired tolylethyl esters of valeric acid.

Likewise, a mixture of tolylethyl alcohols may be prepared from such a methyl styrene fraction, after which the tolylethyl alcohols may be converted into tolylethyl esters of valeric acid by esteriflcation.

The aliphatic monobasic acid esters of alkyl phenylethyl alcohols are, in general, practically colorless fluids possessing very pleasantpdors.

As pointed out previously, these esters are excellent plasticizers for resinous and plastic materials, including (1) cellulosic derivative plastics, such as cellulose esters and ethers, for example, cellulose acetate, cellulose nitrate, ethyl cellulose, benzyl cellulose, cellulose acetopropionate, cellulose acetobutyrate, and the like; (2) vinyl plastics, such as plastics derived from vinyl esters, for example, vinyl chloride, vinyl acetate, vinyl chloride-vinyl acetate mixtures, vinyl chloroacetate, vinyl propionate, and the like, and

polyvinyl acetal, polyvinyl butyral, and similar plastics; (3) vinylidene plastics, such as polymerized vinylidene esters and derivatives, for example vinylidene chloride, vinylidene acetate, and the like; (4) styreneand substituted styrene polymers, such as polystyrene, polymethyl styrene, polystyrene-polymethyl styrene copolymers, and the like; (5) methacrylic plastics, such as polymers derived from methacrylic acid,--esters and/or derivatives of methacrylic acid, for example methyl methacrylate, ethyl methacrylate, and the like, methacrylic nitrile, and similar compounds;

(6) acrylic plastics, such as polymers derived from acrylic acid and/or esters or derivatives thereof, for example, methyl acrylate, ethyl acrylate, acrylic nitrile, and similar materials; (7) hydrocarbon resins such as isobutylene polymers, (8) miscellaneous plastics, such as polyvinyl alcohol, alkyd resins, ester gum, rosin ester, polyamidepolybasic acid plastic masses, and the like; and (9) natural resins,such as rosin, copal, kauri,

'dammar, pontiniak, and elemi.

Copolymers prepared by the copolymerization of two or more of the monomeric compounds listed or indicated in the preceding paragraph also may be plasticized by esters of the type disclosed herein.

The properties of esters of alkyl the alkyl esters aliphatic monobasic acid phenyl alcohols, and particularly of tolylethyl alcohols, which render them particularly desirable for use as plasticizing agents for resinous and plastic materials are (1) their unusually good solubility characteristics, rendering them compatible with a wide variety of resins and plastics, (2) their chemically inert nature, resulting in the production of very stable compositions, (3) their relatively high boiling point'or-ranges, retarding or preventing blushing, bleeding, blooming, and the'like, and in- "methyl-A4-tetrahydrophthallc acid,

surlng against premature embrittlement' due to loss of solvent, (4) their colorless and color-stable plastic compositions, and(6) their low viscosity characteristics. V

Any desired quantity of esters of the type disclosed herein may be incorporated'in such resinous or plastic compositions, or mixtures thereof,-

due care being taken not to exceed the compaticohol,"or mixtures of such esters, if a clear-plastic and/or coating composition or film is desired. In

certain cases in which a translucent and/or bility limit oi the desired ester of alkyl phenyl alopaque effect is desired, the compatibility limit 01' the ester,or mixture of esters, in the plastic,

For most purposes, Inna that 50%, or less, of

an ester, or mixture of esters, of the type described herein is suflicient to impart the desired degreeof plasticity to the resin and/ or plastic, although this 'quantity may be exceeded in certain cases. Ex-

cellent results may be secured in many cases in which-%,or even less, of the plasticizing agent is employed; 1

Esters of the type'described herein also may be used in conjunction with'other plasticizing agents, such as esters of phthalic acid, tetrahydrophthalic acid, 3-methyl-A4-tetrahydrophthalic acid, 4- 3,6-endomethylene-A4 tetrahydrophthalic acid, maleic acid, and the like; esters of sebacic'acid such as dicapryl sebacate; esters of abietic'acid, and rosin acid, as well as hydrogenated esters thereof phosphoric acid esters, such as'tricresyl phosphate; chlorinated diphenyls; and the like, in plasticizing resinous and/or plastic materials. In all such cases, I prefer to employ plasticizing compositions in which esters of the typedescribed herein are present.

Other ingredients, including solvents, fillers,

pigments, dyes, driers, and 'the like also may be incorporated in resin-plasticizer compositions of the type described, if desired.

Resin and/or plasticcompositions of the type described may be used for many purposes, such as the preparation of molding powders for extruding rods, tubes, sheets, films, and the like; for the preparation of coating and/or impregnating compositions; for the preparation of aqueous emulsions; and the likes.

Piasticizing agents of the type described herein may be incorporatedin monomeric resinforming materials prior to, or during, their polymerization or conversion to the resinous state, as they are completely inert in nature and do not affect the polymerization in anyway. This is of very con,- siderable practical importance as. it permits the .formulation of plasticized casting compositions,

' or mixture of plastics, may beexceeded withthis "end infview.

heated in thepresence of an aluminuminsert in a mannersimilarto that describedin Example V Example 5 A mixture of 0.5 gram of alpha .tolylethyl acetate and 9.5 grams of monomeric styrene was placedin an 18 x 150 mm. glass test tube, after which an'aluminum insert comprising a rod in diameter and 4" long also was placed in the T tube. The air inthe test-tube was'displaced with nitrogen and the tube loosely capped-with a piece of aluminum foil.

The mixture was heated for a period of '72 hours at a. temperature of 120 C., then .for 48 hours at a temperature-oi 140 C., and finally ,for' 12 hours at a temperature of 65 C. Upon removing'the test tube from the polymerized sample, a clear polystyrene casting containing an aluminum insert was obtained.

Example 6 A mixture of. 0.5 gram of beta tolylethyl-isovalerate and 9.5 grams of monomeric styrene was 5,- with the exception that the heating period at 65 C. was extendedto 36' hours.

A clear, colorless polystyrene casting containing an aluminum insert was obtained.

' Example 7 Q mixture of 0.5 gram of, beta tolylethylisobutyrate and 9.5 grams of monomeric styrene was heated in the presence of. an aluminuminthe preponderating constituent, or constituents,

sert according to the method outlined in Example 6. A clear, practically colorless polystyrene casting enclosing an aluminum insert was obtained.

lEm ples A mixture of 0.5 gram of alpha tolylethylprm pionate and 9.5 grams of monomeric-styrene was placed in af test tube and sealed in anatmosphere, of nitrogen. The tube then was heated for aI-period of 10days at a temperature of C., after which the tube was removedfrom the poly- 'merized'styrene. A clear, colorless, plasticized polystyrene casting possessing excellent jme- .chanic'al properties was obtained.

Eaiample 9 A mixture of 0.5 gram ofalpha tolylethyl n-bu- "tyrate and 9.5 grams of monomeric styrene was placed -in a test tube and sealed in an atmosphere of nitrogen. The test tube then was heated for Example 10 A mixture of 0.5 gram of beta tolyiethyl nvalerate and 9.5 grams of monomeric styrene was heated in an atmosphere of nitrogen for a period of 4 days at a temperature of C., followed by heating for an additional period-of one day. ata temperature of C. A clear, tough, plasticized polystyrene casting was obtained.

' Example 11' A mixture of 0.5 gram of beta tolylethyl isovalerate and 9.5 grams of monomeric methyl Example 12 A mixture of 0.5 gram of alpha tolylethyl nbutyrate and 9.5 grams of monomeric methyl methacrylate was heated in the presence of a trace of benzoyl peroxide for a period of 4 days at a temperature of 100 C., followed by heating for 1 day at a temperature of 145 C. A clear, tough colorless, transparent casting was obtained.

Example 13 A nitrocellulose lacquer having the following composition was prepared The lacquer was clear and light amber in color. A portion of it was flowed on the surface of a tin panel and permitted to dry for a period of 48 hours. The coating film obtained was clear and possessed good elastic properties.

Example 14 A lacquer similar to that described in Example 13 was prepared with the exception that beta tolylethyl isovalerate was used as a plasticizing agent in place of alpha tolylethyl acetate. The lacquer was clear and was light amber in color.

It was flowed on the surface of a reduced iron panel and baked for one hour at a temperature of 100 C. A clear, transparent, adherent film was obtained, which was not removed when the coated panel was bent sharply through an angle of 180 C.

Example 15 A lacquer similar to that described in Example 13 was prepared, with the exception that .beta tolylethyl isobutyrate was substituted for alpha tolylethyl acetate in the formula.

The clear lacquer was applied to the surface of a steel panel and permitted to dry for a period of 48 hours. A clear, adherent, distensible film was obtained.

Example 16 A lacquer similar to that described in Example 13 was prepared, alpha tolylethyl propionate .being used as the plasticizing agent in place of alpha tolylethyl acetate.

The lacquer was applied to the surface of a tin panel and permitted to dry for a period of 48 hours. A clear, adherent coating film which could not be removed readily from the surface of the panel was obtained.

' Example 17 A nitrocellulose lacquer was prepared according to the following formula.

Parts Nitrocellulose .5 Rosin ester 2 /2 Alpha toylethyl n-butyrate 2 The thinner had the following composition Mixed amyl alcohols 10 Ethyl alcohol 4 Toluene 33 Petroleum naphtha -l 20 The lacquer was clear and had a very slight amber color. It was flowed on the surface of a freshly cleaned tin panel and permitted to dry for a period of 48 hours. A clear, adherent coating was obtained.

Example 18 I A lacquer similar to that described in Example 17 was prepared, beta-tolylethyl n-valerate being used as a plasticizing agent in place of alpha tolylethyl n-butyrate.

The lacquer was flowed on the surface of a freshly cleaned magnesium panel and permitted to dry for a period of 48 hours. The coating obtained was clear and adhered well to the metallic surface.

Example 19 An ethyl cellulose lacquer was prepared according to the following formula.

Parts Ethyl cellulose 10 Beta tolylethyl isovalerate 5 Ester gum 5 Thinner 80 The used thinner had the following composi tion.

Parts Isopropyl acetate -J 15 Absolute ethyl alcohol 3 Amyl acetate l8 Tertiary amyl alcohol l0 Toluene 40 Toluol 14 The lacquer was clear and had a very light amber color. It was brushed on the surface of a tin panel and permitted to dry for a period of 48 hours. A clear, adherent coating film was ob- 4 tained.

- Example 20 A lacquer similar to that described in Example 19 was prepared, with the exception that beta tolylethyl isobutyrate was used as the plasticizing agent in place of beta tolylethyl isovalerate.

The clear lacquer was applied to the surface of a reduced iron panel and baked for a period of one hour at a temperature of C. The coating was clear and colorless and showed no evidences .of cracking when the coated panel was bent sharply through an angle of Example 21 A lacquer similar to that described in Example 19, with the exception that alpha tolylethyl propionate was used as the plasticizing agent in place of beta tolylethyl isovalerate was prepared.

The clear coating was applied to the surface of paper stock and permitted to dry for a period of 48 hours. A clear, glossy, lacquer paper was obtained.

Example 22 A lacquer similar to that described in Example 19 was prepared, alpha tolylethyl n-butyrate being used as the plasticizing agent.

The clear lacquer was applied to the surface of a freshly cleaned magnesium panel and permitted to dry for a period of 48 hours. adherent, coating film was obtained.

Example 23 A lacquer having the following composition was prepared. V

Thinner Thethinner used had the following composition.

The clear'lacquer was applied to the surface of i a tin panel'and baked for a period of one hour at 100 C. A clear, adherent coating film, which A 'clear,

. without departing from alkyl phenylethyl alcohol. 1

r N Parts "Mixed amyl acetates 20 Mixed ams'Falcol'lols". .10 n-Propyl acetate Ethyl'alcohol ,3 Toluene 34 Petroleum thinner 18 showed no-signs of'cracking or silking when bent sharply through an angle of: 180,

1 Y 7 Example 24' A lacquer similar to that described in Example 23 withthe exception that. alpha t0lylethy1 acewas obtained.

tate wasf'used as the plasticizing agent, was preclear and light amber pared. The lacquer was in color. I

It was flowed on the surface of a reduced iron panel, after which it was permitted to dry for a period of 48 hours at room temperature. A clear, extensible, adherent coating film was obtained. a

Example 2 5 hols, as plasticizing agents have been specifically described, it is to be understood that this is by way of illustration. Therefore, changes, omissions, additions, substitutions, and/or modifica tions may be made within the scope of the claims the spirit of the invention.

I claim:

1. A plasticized composition comprising a plasticizable organic substance and as plasticizer therefor an aliphatic mon basic acid esterof an 2. Asa new composition of matter, a plasticized organic substance in which the plasticizer is an aliphatic monobasic acid ester of tolylethyl al-' cohol.

3. As a new composition of matter, .a plasticizable organic substance plasticized up-to 50% of its weight with tolylethyl acetate;

4. A plasticized composition comprising a plasticizable organic substance and as plasticizcr therefor up to 50% of its weight of a tolylethyl butyrate.

5. A plasticized composition comprising a plasticizable organic substance and as plasticizer therefor. up to 50% oi. its-weight of a tolylethyl valerate.

6. As a new composition of matter, a synthetic cellulosic plastic 'plarricized up to 50% of its weight by means of an aliphatic monobasic acid ester of tolylethyl alcohol.

A cellulose acetate lacquer was prepared by.

mixing 'l'parts of the-following base formula I Parts 7 Alpha tolylethyl acetate 35 Cellulose acetate 65 with 93 parts of a thinner having the following composition.

Parts Acetone 50 Cellosolve Toluene 15 Pentacetate 15 Th lacquer obtained was fairly clear and quite colorless. It was flowed out on' the surface of a tin panel and permitted to dry for a period of 48 hours. A fairly adherent coating film was obtained.

I Example 26 A mixture of 30 parts ethyl alcohol and 70 parts of polyvinylchloride is thoroughly blended on a hot roll. After sheeting, a pliable composition havinggood mechanical properties is obtained. .7

In certain cases, particularly'in lacquers, it may be advantageous to have an alcohol, such as an alkyl phenyl ethyl alcohol or other alcohol, present in order to neutralize any acid which may be formed through hydrolysis of the ester or esters of alkyl phenyl ethyl alcohols.

' While the use of specific esters of alkyl phenylethyl alcohols, and particularly of tolylethyl alcocarbon resin plasticized '1. As anew composition of -matter,-a vinyl resin plasticized by means of an aliphatic monobasic acid ester of tolylethyl alcohol.

8'..As a new composition of-matte -a hydroup to of its weight by means of an aliphatic monobasic acid ester of tolylethyl alcohol:

9. Polystyrene p'lasticized' up to 30% of its weight by means of an aliphatic monobasic acid ester of tolylethyl alcohol.

10. A lacquer comprising a solvent and a plasticized cellulosic plastic in which the plasticizer .is an aliphatic monobasic acid ester of tolylethyl alcohol. r

11. A molding composition comprising a finely .divided plasticized organic substance in which the plasticizer is an aliphatic monobasic acid ester of an alkyl phenylethyl alcohol.

12. A molded object comprising a molded plasticized organic substance in which the is an aliphatic monobasic acid ester of an alkyl phenylethyl alcohol.

13. An extruded object comprising an extruded plasticized synthetic organic substance in which the plasticizer is an aliphatic monobasic acid ester of an alkyl phenylethylalcohol.

of an alkyl ester of tolyl- I 14. Plasticized cellulosic plastic in which the plasticizing agent is a tolylethyl acetate.

15, A plasticized composition comprising an organic synthetic plastic and as plasticizing agent therefor an aliphatic monobasic acid ester of an alkyl phenylethyl alcohol.

16. A plasticized composition comprising a cellulosic plastic and as plasticizer therefor an allphatic monobasic acid ester of an alkyl phenylethyl alcohol.

17. A molding compound comprising a finely divided synthetic cellulosic plastic plasticized by ,means of an aliphatic monobasic acid ester of tolylethyl alcohol.

FRANK J. SODAY.

plasticizer I 

